an hundred and fourescore yeares] A longer life then any of the fathers enjoyed after him; with which, Moses willing here to close up the story of Isaac by a figure called Prolepsis, or ancicipation, brings in his full age 180. yeares, with his death, and buriall, and after makes report of things concerning his posteritie unto the 41. Chapter, which fell out when Isaac was alive, for he lived twelve yeares after his grand-child Joseph was sold into Egypt.